AXMI-031, AXMI-039, AXMI-040 and AXMI-049, a family of novel delta-endotoxin genes and methods for their use
View Patent ↗Compositions and methods for conferring pesticidal activity to bacteria, plants, plant cells, tissues and seeds are provided. Compositions comprising a coding sequence for a delta-endotoxin polypeptide are provided. The coding sequences can be used in DNA constructs or expression cassettes for transformation and expression in plants and bacteria. Compositions also comprise transformed bacteria, plants, plant cells, tissues, and seeds. In particular, isolated delta-endotoxin nucleic acid molecules are provided. Additionally, amino acid sequences corresponding to the polynucleotides are encompassed, and antibodies specifically binding to those amino acid sequences. In particular, the present invention provides for isolated nucleic acid molecules comprising nucleotide sequences encoding the amino acid sequence shown in SEQ ID NO:2, 4, 6, 8, 10, 12, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, or 38, or the nucleotide sequence set forth in SEQ ID NO:1, 3, 5, 7, 9, 11, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, or 37, as well as variants and fragments thereof.
1. An isolated polypeptide with pesticidal activity, selected from the group consisting of:
a) a polypeptide comprising the amino acid sequence of SEQ ID NO:2, 4, 6, 8, 10, 12, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, or 38;
b) a polypeptide comprising an amino acid sequence having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:2, 8, 10, 12, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33 or 38, wherein said amino acid sequence has pesticidal activity against a lepidopteran or a nematode pest;
c) a polypeptide that is encoded by the nucleotide sequence of SEQ ID NO:1, 3, 5, 7, 9, 11, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, or 37; and
d) a polypeptide encoded by the delta endotoxin nucleotide sequence of the DNA insert of the plasmid deposited as Accession No. B-30935.
2. The polypeptide of claim 1 further comprising heterologous amino acid sequences.
3. A composition comprising the polypeptide of claim 1 .
4. The composition of claim 3 , wherein said composition is selected from the group consisting of a powder, dust, pellet, granule, spray, emulsion, colloid, and solution.
5. The composition of claim 3 , wherein said composition is prepared by desiccation, lyophilization, homogenization, extraction, filtration, centrifugation, sedimentation, or concentration of a culture of Bacillus thuringiensis cells.
6. The composition of claim 3 , comprising from about 1% to about 99% by weight of said polypeptide.
7. A method for controlling a lepidopteran or nematode pest population comprising contacting said population with a pesticidally-effective amount of the polypeptide of claim 1 .
8. A method for killing a lepidopteran or nematode pest, said method comprising contacting said pest with, or feeding to said pest, a pesticidally-effective amount of the polypeptide of claim 1 .
9. A method for producing a polypeptide with pesticidal activity, said method comprising culturing a host cell comprising a nucleic acid molecule encoding said polypeptide under conditions in which said nucleic acid molecule is expressed, wherein said nucleic acid molecule comprises a nucleotide sequence selected from the group consisting of:
a) the nucleotide sequence of SEQ ID NO:1, 7, 9, 11, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, or 37, or a complement thereof;
b) a nucleotide sequence that encodes a polypeptide comprising the amino acid sequence of SEQ ID NO:2, 8, 10, 12, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, or 38;
c) a nucleotide sequence that encodes a polypeptide comprising an amino acid sequence having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:2, 8, 10, 12, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, or 38, wherein said amino acid sequence has pesticidal activity against a lepidopteran or a nematode pest; and,
d) the delta endotoxin nucleotide sequence of the DNA insert of the plasmid deposited as Accession Nos. B-30935, or a complement thereof.